33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
495255
145607
2
Create a timeline
Public Timelines
For education
For educational institutions
For teachers
For students
Cabinet
For educational institutions
For teachers
For students
Open cabinet
FAQ
Get premium
Close
Create a timeline
Public timelines
FAQ
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
Discovers over 2,400 Cepheid variable stars and created her period-luminosity theory (jan 1, 1902 – apr 28, 1904)
Added to timeline:
Henrietta Leavitt
By
Shawn Cunning
2 Oct 2018
0
0
499
Date:
jan 1, 1902
apr 28, 1904
~ 2 years and 3 months
About & Feedback
Terms
Privacy
FAQ
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
